7(x-1.2)=5x解放程 10.8÷2x=0.6×0.9 解放程

问题描述:

7(x-1.2)=5x解放程 10.8÷2x=0.6×0.9 解放程

7(x-1.2)=5x
7x-8.4=5x
7x-5x=8.4
2x=8.4
x=4.2
10.8÷2x=0.6×0.9
2x=10.8÷0.54
2x=20
x=10

7(x-1.2)=5x
7x-8.4=5x
7x-5x=8.4
2x=8.4
x=8.4÷2
x=4.2
10.8÷2x=0.6×0.9
5.4x=0.54
x=0.54÷5.4
x=0.1